Biology (Organelles) Flashcards
1
Q
Cell membrane
A
- Protective barrier
- Transport of material in and out of cell
- Cell interaction and communication (recognition of molecules)
2
Q
Cell membrane is like…
A
Skin of the cell
3
Q
Cytoplasm
A
- Gel-like substance inside cell membrane
- Supports and protects cell
- Suspends Organelles
- Contains Nutrients
4
Q
Cytoplasm is like the…
A
Jello in jello salad
5
Q
Nucleus
A
- Contains DNA
- Directs all cellular activity
- Surrounded by nuclear envelope (has pores to transport materials)
6
Q
Nucleus is like…
A
The brain of the cell
7
Q
Lysosomes
A
- Only animal cells
- Small, round and membrane bound
- Digestive sacs (break large molecules into small)
- Contains digestive enzymes
8
Q
Lysosomes are like the…
A
Stomach of the cell
9
Q
Vesicles/Vacuoles
A
- Membrane bound, fluid-filled sacs that store food, water, waste
- Packages that transport materials throughout the cell
- Plant: 1 large few small
- Animal: Only small called vesicles
10
Q
Vesicles/Vacuoles are like the…
A
storage container of the cell
11
Q
Mitochondria
A
- Bean-shaped organelle with internal matrix of
membranes - Site of cellular respiration
- Breaks down glucose into water, carbon dioxide and ATP (energy for cells)
12
Q
Mitochondria is like the…
A
powerhouse of the cell
13
Q
Endoplasmic reticulum(s)
A
- Network of folded membranes that extend into the cytoplasm from the nuclear membrane
Two types: - Rough ER – contains ribosomes
- Smooth ER – produces lipids
14
Q
Endoplasmic reticulum(s) are like the…
A
factory of the cell
15
Q
Ribosome
A
- Can exist on the Rough ER or free in the cytoplasm.
- Sites of protein synthesis
- Smallest structure in cytoplasm
